document.write( "Question 186862: Dick is now seven times as old as harry. In six years Dick will be five times as old as Harry. How old will Harry be in five years? \n" ); document.write( "
Algebra.Com's Answer #140119 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Let d = Dick's present age \n" ); document.write( "Let h = Harry's present age \n" ); document.write( "; \n" ); document.write( "Write an equation for each statement: \n" ); document.write( ": \n" ); document.write( "\"Dick is now seven times as old as harry.\" \n" ); document.write( "d = 7h \n" ); document.write( ": \n" ); document.write( "\" In six years Dick will be five times as old as Harry.\" \n" ); document.write( "d + 6 = 5(h + 6) \n" ); document.write( ": \n" ); document.write( "d + 6 = 5h + 30 \n" ); document.write( "; \n" ); document.write( "d = 5h + 30 - 6 \n" ); document.write( ": \n" ); document.write( "d = 5h + 24 \n" ); document.write( ": \n" ); document.write( " How old will Harry be in five years? \n" ); document.write( ": \n" ); document.write( "Substitute 7h for d in the above equation \n" ); document.write( "7h = 5h + 24 \n" ); document.write( "7h - 5h = 24 \n" ); document.write( "2h = 24 \n" ); document.write( "h = \n" ); document.write( "h = 12 is Harry's present \n" ); document.write( "then \n" ); document.write( "12 + 5 = 17 yrs is Harry's age in 5 yrs \n" ); document.write( " |